OT Cybersecurity Engineer

About the role

The OT Cybersecurity Engineer will protect the global Operational Technology ecosystem across manufacturing sites in Asia, the Americas and Europe. Based in India, you will lead security assessments, design secure architectures and drive continuous monitoring for PLCs, SCADA, DCS, IIoT and MES environments.

Key responsibilities

• Conduct OT/ICS security assessments across global manufacturing sites.
• Perform risk and gap analyses against ISA/IEC 62443, NIST and related guidelines.
• Maintain OT asset inventories, including firmware versions, network diagrams and data flows.
• Design and enforce network segmentation aligned to the Purdue Model.
• Recommend, oversee deployment and validate OT‑specific security controls.
• Serve as the primary OT security contact for each facility and lead incident‑response planning and tabletop exercises.
• Develop OT security policies, standards and governance aligned to ISO 27001 and ISA 62443.
• Track OT threat intelligence, update risk registers and promote security awareness.
• Drive automation, standardisation and modernisation to improve service quality and operational maturity.
• Evaluate AI‑driven capabilities to enhance efficiency while maintaining governance.

Required profile

• 10+ years of cybersecurity experience, with at least 5 years focused on OT/ICS environments.
• Deep expertise with ISA/IEC 62443, NIST, NERC CIP or equivalent OT frameworks.
• Proven experience securing SCADA, DCS and PLC systems (Siemens, Rockwell, Schneider Electric, ABB, GE, etc.).
• Strong understanding of industrial network architecture, the Purdue Model and OT/IT DMZ design.
• Experience working in multi‑site, globally distributed manufacturing environments.
• Ability to operate independently and drive assessments, planning, communication and execution.
• Excellent written and verbal English communication skills.

Required skills

• ISA/IEC 62443
• NIST
• NERC CIP
• SCADA
• DCS
• PLC
• Siemens
• Rockwell
• Schneider Electric
• ABB
• GE
• Industrial network architecture
• Purdue Model
• OT/IT DMZ design
• Protocol security
• Network security
• Firewall management
• Segmentation
• OT security monitoring platforms
• Industrial IoT (IIoT)
• MES
• Digital twins
• Cloud‑connected OT
• Secure remote access